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Liquid cooling system of high-power charging connector and control method thereof

A high-power charging and connector technology, used in charging stations, electric vehicle charging technology, electric vehicles, etc., can solve the problems of waste of manpower and material resources, uncertainty of cooling oil insulation failure time, etc., and achieve the effect of ensuring insulation safety.

Active Publication Date: 2021-09-24
ZHEJIANG GEELY HLDG GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the different charging frequency and different working hours of cooling oil in different charging stations, there is uncertainty in the time of cooling oil insulation failure. When the cold oil is replaced regularly, the insulation value may be replaced even if it is normal, and there is a waste of manpower and material resources

Method used

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  • Liquid cooling system of high-power charging connector and control method thereof
  • Liquid cooling system of high-power charging connector and control method thereof

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Embodiment Construction

[0033] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0034] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intermediate element at the same time, and the "connection" may be an electrical connection or a communication connection.

[0035] Unless otherwise defined, all technical ...

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Abstract

The invention discloses a liquid cooling system for a high-power charging connector, and the system comprises a non-conductive liquid material box which comprises a first cavity and a second cavity which are communicated with each other, the first cavity is disposed above the second cavity to form a sealed box body, the cross section of the first cavity is larger than the cross section of the second cavity, and the first cavity is provided with a liquid inlet and a liquid outlet; the system also comprises a radiator and a cooling pump, a pipeline at one end of the radiator is inserted into a preset first distance from the top of the first cavity through the liquid inlet; a pipeline at one end of the cooling pump is connected with the other end of the radiator, a to-be-cooled cable and an interface terminal of the charging connector are immersed in a pipeline at the other end of the cooling pump, and the pipeline at the other end of the cooling pump is inserted into a preset second distance from the top of the first cavity through the liquid outlet; the bottom of the second cavity is provided with a discharge port, the discharge port is provided with a discharge valve, and the discharge valve is used for discharging metal impurities worn by the cable to be cooled. The risks that the insulation resistance of the liquid cooling oil becomes small and insulation fails after long-term use can be reduced.

Description

technical field [0001] The invention relates to the technical field of liquid cooling, in particular to a liquid cooling system of a high-power charging connector and a control method thereof. Background technique [0002] After years of development, electric vehicles have basically matured, but the slow charging speed affects their use. At present, there is an urgent need to increase the charging power of electric vehicles. [0003] In the current research on high-power charging, there are mainly water-cooling schemes and oil-cooling schemes for current conduction connections. Water is not an insulator, and there is a possibility of leakage in water cooling applications. Leakage will lead to a serious risk of short circuit, which is not conducive to comprehensive promotion; oil has good insulation and is suitable for direct cooling of current metal conductors, and the cooling effect is good. However, during the cooling process, the cooling oil flows and rubs against the me...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L53/302
CPCB60L53/302Y02T90/14
Inventor 郭申发杨贤明郭水保
Owner ZHEJIANG GEELY HLDG GRP CO LTD
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